/* ==========================================================================
   MENU — desktop (dropdown + mega menu) e mobile (overlay a pannelli).
   Classi generate da Hornoi_Mega_Menu_Walker. Stato gestito da assets/js/menu.js.
   ========================================================================== */

/* :where() = specificità zero, così il padding dei pannelli non viene azzerato */
:where(.menu, .menu ul) { list-style: none; margin: 0; padding: 0; }

.menu-toggle {
    display: none;
    position: relative;
    z-index: calc(var(--z-overlay) + 1);
    width: var(--tap-target);
    height: var(--tap-target);
    padding: 0;
    border: 0;
    background: none;
    color: inherit;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

.menu-toggle span {
    position: absolute;
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    transition: transform var(--duration-base) ease, opacity var(--duration-base) ease;
}

.menu-toggle span:nth-child(1) { transform: translateY(-7px); }
.menu-toggle span:nth-child(3) { transform: translateY(7px); }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg); }

.menu a { text-decoration: none; }
.menu .current-menu-item > a,
.menu .current-menu-ancestor > a { color: var(--color-accent); }

.menu-item-has-children > a::after {
    content: "";
    width: 0.45em;
    height: 0.45em;
    margin-left: var(--space-2);
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: translateY(-25%) rotate(45deg);
    transition: transform var(--duration-fast) ease;
}

/* Testata dei pannelli mobile (iniettata da menu.js) */
.submenu-head { display: none; }

/* --- DESKTOP (> 1024px) ------------------------------------------------- */
@media (min-width: 1025px) {
    .menu { display: flex; align-items: center; gap: var(--space-1); }
    .menu > li { position: relative; }

    .menu > li > a {
        display: flex;
        align-items: center;
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-sm);
        font-weight: 600;
        white-space: nowrap;
    }

    /* Niente freccia sulle voci annidate (colonne del mega menu, dropdown) */
    .sub-menu .menu-item-has-children > a::after { content: none; }

    .menu > li:hover > a::after,
    .menu > li:focus-within > a::after { transform: translateY(0) rotate(-135deg); }

    /* Dropdown */
    .dropdown-panel {
        position: absolute;
        top: 100%;
        left: 0;
        z-index: var(--z-dropdown);
        min-width: var(--dropdown-min-width);
        padding: var(--space-2);
        background: var(--color-bg);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-ui);
        box-shadow: var(--dropdown-shadow);
        opacity: 0;
        visibility: hidden;
        transform: translateY(6px);
        transition: opacity var(--duration-fast) ease, transform var(--duration-fast) ease, visibility var(--duration-fast);
    }

    .menu > li:hover > .dropdown-panel,
    .menu > li:focus-within > .dropdown-panel { opacity: 1; visibility: visible; transform: none; }

    /* Dropdown che uscirebbe a destra: allineato al bordo destro della voce (menu.js) */
    .dropdown-panel.is-flipped { left: auto; right: 0; }

    .dropdown-panel a {
        display: block;
        padding: var(--space-2) var(--space-3);
        border-radius: var(--radius-sm);
        font-size: var(--text-sm);
        color: var(--color-text);
    }

    .dropdown-panel a:hover { background: var(--color-surface); }

    /* Mega menu */
    .menu > li.mega-menu { position: static; }

    /* Box allineato al container, staccato dai bordi dello schermo */
    .mega-menu-panel {
        position: fixed;
        left: max(var(--gutter), calc((100vw - var(--container-max)) / 2));
        right: max(var(--gutter), calc((100vw - var(--container-max)) / 2));
        top: calc(var(--mega-top, var(--header-height)) + var(--space-2));
        z-index: var(--z-dropdown);
        display: flex;
        gap: var(--space-8);
        padding: var(--space-7) var(--space-8);
        background: var(--color-bg);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        box-shadow: var(--mega-menu-shadow);
        opacity: 0;
        visibility: hidden;
        transform: translateY(8px);
        transition: opacity var(--duration-base) ease, transform var(--duration-base) ease, visibility var(--duration-base);
    }

    .mega-menu-panel.is-visible { opacity: 1; visibility: visible; transform: none; }

    .mega-menu-panel > li { flex: 1 1 0; min-width: 0; }

    .mega-menu-panel > li > a {
        display: block;
        margin-bottom: var(--space-3);
        padding-bottom: var(--space-2);
        border-bottom: 1px solid var(--color-border);
        font-size: var(--text-xs);
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: var(--tracking-wide);
        color: var(--color-text-muted);
    }

    .mega-menu-panel .sub-menu a {
        display: block;
        padding: var(--space-2) 0;
        font-size: var(--text-sm);
        color: var(--color-text);
    }

    .mega-menu-panel .sub-menu a:hover { color: var(--color-accent); }
}

/* --- MOBILE (≤ 1024px) -------------------------------------------------- */
@media (max-width: 1024px) {
    .menu-toggle { display: inline-flex; margin-left: auto; }

    .main-nav {
        position: fixed;
        inset: 0;
        z-index: var(--z-overlay);
        overflow-y: auto;
        padding: calc(var(--header-height) + var(--space-5)) var(--gutter) var(--space-9);
        background: var(--color-bg);
        color: var(--color-text);
        transform: translateX(-100%);
        visibility: hidden;
        transition: transform var(--duration-base) var(--ease-out), visibility var(--duration-base);
    }

    .main-nav.is-open { transform: none; visibility: visible; }

    /* Pannelli: ogni sotto-menu copre l'overlay ed entra da destra */
    .main-nav .sub-menu {
        position: fixed;
        inset: 0;
        z-index: 1;
        overflow-y: auto;
        padding: calc(var(--header-height) + var(--space-5)) var(--gutter) var(--space-9);
        background: var(--color-bg);
        transform: translateX(100%);
        visibility: hidden;
        transition: transform var(--duration-base) var(--ease-out), visibility var(--duration-base);
    }

    .main-nav li.is-open > .sub-menu { transform: none; visibility: visible; }

    .menu li { border-bottom: 1px solid var(--color-border); }

    .menu li:not(.submenu-head) > a {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--space-4) 0;
        font-size: var(--text-xl);
        font-weight: 700;
    }

    .menu .sub-menu li:not(.submenu-head) > a {
        font-size: var(--text-lg);
        font-weight: 600;
    }

    /* Freccia verso destra: la voce apre un pannello */
    .menu-item-has-children > a::after { transform: rotate(-45deg); }

    /* Testata del pannello: tasto indietro + titolo della voce padre */
    .menu li.submenu-head {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-1);
        padding-bottom: var(--space-3);
    }

    .submenu-back {
        display: inline-flex;
        align-items: center;
        gap: var(--space-2);
        padding: var(--space-2) 0;
        border: 0;
        background: none;
        font: inherit;
        font-size: var(--text-sm);
        font-weight: 600;
        color: var(--color-text-muted);
        cursor: pointer;
    }

    .submenu-back::before {
        content: "";
        width: 0.5em;
        height: 0.5em;
        border-left: 2px solid currentColor;
        border-bottom: 2px solid currentColor;
        transform: rotate(45deg);
    }

    .submenu-title {
        font-size: var(--text-xs);
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: var(--tracking-wide);
        color: var(--color-text-muted);
    }

    a.submenu-title:hover { color: var(--color-accent); }
}